AHV-P4000DVD installed, integration w/ stock BOSE amp, just not loud, please HELP - AudiWorld Forums
Bluetooth Hans-free and streaming in a stock A4 B5 symphony - AudiWorld Forums
Upgrading Speakers for Non-Bose B6/B7 Audi A4 – Nick's Car Blog
Radio Active System Adapter for Audi A2 A3 A4 A6 A8 TT B5 Bose DSP Cable 4x50 W to 16-Pin ISO Standard: Amazon.de: Electronics & Photo
Audi A4 B5 Avant Bose Sound System | eBay
Audi A4 B5 Avant Bose Sound System | eBay
Audi A4 B5 Avant Bose Sound System | eBay
Audioproject A138 - Active System Radio Adapter Cable Compatible with Audi A2 A3 A4 B5 A6 A8 TT Porsche VW BOSE DSP 4 x 100 W (400 Watt) : Amazon.de: Electronics & Photo
b5 audi a4 s4 radio install with fix - YouTube
Audi A4 b5 BOSE upgrade with Hertz Dieci DCX 1 - YouTube